# Use Hanzo AI with TypeScript — Hanzo AI

> Use Hanzo AI in TypeScript and Node.js with the OpenAI SDK, Vercel AI SDK, or raw fetch. Full type safety and async/streaming support.

[Integrations](https://hanzo.ai/integrations)/TypeScript

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# Use Hanzo AI with TypeScript

Use Hanzo AI in TypeScript and Node.js with the OpenAI SDK, Vercel AI SDK, or raw fetch. Full type safety and async/streaming support.

Base URL: `https://api.hanzo.ai/v1`

API Key: Get yours at [hanzo.ai/signup](https://hanzo.ai/signup) · Fully OpenAI-compatible · 500+ models available

🟦

Created by [Microsoft](https://typescriptlang.org)

License: Apache-2.0 · [View source on GitHub →](https://github.com/microsoft/TypeScript)

Hanzo AI is OpenAI-compatible, so existing TypeScript code works with zero refactoring. We deeply appreciate the Microsoft team for building and maintaining this open-source project.

## OpenAI SDK

typescript

```
npm install openai import OpenAI from "openai"; const client = new OpenAI({ baseURL: "https://api.hanzo.ai/v1", apiKey: process.env.HANZO_API_KEY, }); const response = await client.chat.completions.create({ model: "zen4-pro", messages: [{ role: "user", content: "Hello!" }], }); console.log(response.choices[0].message.content);
```

## Streaming

typescript

```
const stream = await client.chat.completions.create({ model: "zen4-pro", messages: [{ role: "user", content: "Stream this" }], stream: true, }); for await (const chunk of stream) { process.stdout.write(chunk.choices[0]?.delta?.content ?? ""); }
```

## Next.js API route

typescript

```
// app/api/generate/route.ts import OpenAI from "openai"; import { NextResponse } from "next/server"; const client = new OpenAI({ baseURL: "https://api.hanzo.ai/v1", apiKey: process.env.HANZO_API_KEY, }); export async function POST(req: Request) { const { prompt } = await req.json(); const response = await client.chat.completions.create({ model: "zen4-pro", messages: [{ role: "user", content: prompt }], }); return NextResponse.json(response.choices[0].message); }
```

## List models

typescript

```
const models = await client.models.list(); console.log(`Available: ${models.data.length} models`); models.data.slice(0, 5).forEach((m) => console.log(m.id));
```

## Ready to get started?

Create a free account and get your API key. 100K API calls/month free forever.

[Get API Key — Free](https://hanzo.ai/signup)[Browse Models](https://hanzo.ai/models)

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